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				<tr><td><font size="3" color="#0000aa"><b>Problem description</b></font></td></tr>
				<tr><td class="title"> We just test the input and output system in your selected language.<br><br></td></tr>

				<tr><td><font size="3" color="#0000aa"><b>Input</b></font></td></tr>
				<tr><td>The Input will contain only two integers a,b. <br><br></td></tr>

				<tr><td><font size="3" color="#0000aa"><b>Output</b></font></td></tr>
				<tr><td> The Ouput should contains the result of a + b.
No other whitespace contians at begin or end of the output
Notice : empty line is allowed.<br><br></td></tr>

				<tr><td><font size="3" color="#0000aa"><b>Sample Input</b></font></td></tr>
				<tr><td><pre>10 20</pre></td></tr>

				<tr><td><font size="3" color="#0000aa"><b>Sample Output</b></font></td></tr>
				<tr><td><pre>30</pre></td></tr>

				

				
				<tr><td><font size="3" color="#0000aa"><b>Problem Source</b></font></td></tr>
				<tr><td>HNU&nbsp;Contest<br><br></td></tr>
				

				

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